Ok so there’s no easy way to cover this one, but we’ll try and make it a bit more digestible than the umpteen different TFL pages that you’ll have to navigate covering the topic. ULEZ for those that don’t know is the Ultra Low Emission Zone covering London. From 25/10/21 it is going to be significantly increased to cover the area within the North and South Circular roads. It’s intention is to keep the air over London less polluted going into the future. You can take your car there still – but it may now cost you.
The simplest way to find out is by looking here if your car even falls within the emissions criteria. Most modern (post 2005) cars already meet the regulations (Euro 4 emissions if you’re really having trouble sleeping) and won’t have to pay the £12.50. The Mayor’s website say that the scheme is designed to tax “Older, more polluting vehicles”.
The new ULEZ zone will operate 24/7 365 days of the year. Cars, vans, buses, coaches, lorries and motorbikes are all included in the new rules, but the charge will only apply to models that don't meet certain emissions standards.
There are historic exemptions so if your vehicle is 40 or older then you do not have to pay, so if your car/s fall into the “Historic Tax class” then you’re off the hook. If you are a resident in London, you may also be able to apply for discounts/exemptions.
In plain English, if your car is made anywhere between 1981 and 2005 and you’re planning on driving into London after 25/10/21; it’s worth checking to see if you’re going to get stung for another road usage charge. It is a huge expansion and likely to catch the unawares out. There is a journey planner here and further reading here to get yourself up to speed.
Autocar's view